*{
    margin: 0px;
    list-style: none;
    text-decoration: none;
}
.mt10{margin-top:10px;}
.mt20{margin-top:20px;}
.mt30{margin-top:30px;}
.mt40{margin-top:40px;}
.mt50{margin-top:40px;}
.p10{padding: 10px;}
.p20{padding: 20px;}
.p30{padding: 30px;}
.p40{padding: 40px;}
.p50{padding: 50px;}
.ml10{margin-left:10px;}
.ml20{margin-left:20px;}
.ml30{margin-left:30px;}
.ml40{margin-left:40px;}
.ml50{margin-left:40px;}
.mr10{margin-right:10px;}
.mr20{margin-right:20px;}
.mr30{margin-right:30px;}
.mr40{margin-right:40px;}
.mr50{margin-right:40px;}

.nickname{
    width: 400px;
    height: 40px;
    font-size: 20px;
}
.birthday{
    width: 400px;
    height: 40px;
    font-size: 20px;
}
.email{
    cursor: pointer;
}
.change{
    cursor: pointer;
    color: green
}
/* .upload {
        display: inline-block;
        width: 120px;
        height: 60px;
        line-height: 60px;
        position: relative;
        text-align: center;
      } */
      /*input 标签有默认的宽高border,outline*/
      .upload> input {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        /*透明度为0*/
        opacity: 0;
        cursor: pointer;
      }

